This is a useful book although it is small. It contains some technical terms for da'wah in English. No doubt all scholars and callers to Islam in English are in much need to something like that to conveys the right message of Islam to all those speak English.
Source: http://www.islamhouse.com/p/318420
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This is the second treatise in the collection The Beliefs of the Pious Predecessors and the People of Hadeeth. The Author present it to the respected readers after Allah has ennobled him by making him concerned with it and by checking and verifying the ahaadeeth mentioned therein, (all) by the bounty of Allah, the Exalted
Author: Imam Ahmed ibn Hanbal
Source: http://www.islamhouse.com/p/51792
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God in Christianity... What is His Nature?: The intent of this work is to honestly and sincerely present the truth that was found
Author: Naji Ibrahim al-Arfaj
Source: http://www.islamhouse.com/p/60614
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According to Biblical scholars and the text of the Bible itself, Shaikh Ahmed Deedat explained in detail regarding "Is the Bible God's word?"
Author: Ahmed Deedat
Source: http://www.islamhouse.com/p/273072
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Kitab At-Tawheed is one of the best books on the subject of Tawheed (Islamic Monotheism) and ranks high in authenticity. Till date it has gone through various publications; and had been the means for guidance of the millions of people throughout the world; by taking them out of the darkness of polytheism and error.
Author: Muhammad Bin Abdul Wahhab
Publisher: http://www.islambasics.com - Islam Basics Website
Source: http://www.islamhouse.com/p/128600
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This book compiles the stories a number of past priests who have since embraced Islam, Including well known speakers and authors Yusuf Estes and Abu Yahya.
Author: Yusuf Estes
Reveiwers: Muhammad AbdulRaoof
Source: http://www.islamhouse.com/p/314369
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